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need help to replace old WhiteRodgers stat with with honeywell RTH7600

need help to replace old WhiteRodgers stat with with honeywell RTH7600

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  #1  
Old 11-06-10, 05:44 PM
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need help to replace old WhiteRodgers stat with with honeywell RTH7600

I have an Enertran Geothermal water furnace (heat and air) which has 2 stage heat/1 stage cooling, with aux heat and emergency heat, and is currently controlled with a White Rodgers Type 1F58-28 thermostat.
I contacted Honeywell and they recommended that I use their stat model RTH7600, which I have since purchased.
However I am having difficulty in getting the wiring transferred to the new stat, the original stat is connected as below
Connections on stat.......wire color
R Red
G Green
Z Brown
X1 White
W2 Blue
Y Yellow
K Black
W1 Orange (or pink)

The connections at the terminal block on the furnace are
R Red (going to stat)
W1 Orange (or pink) (going to stat)
Y Yellow (going to stat)
G G (going to stat)
X1 White (2 wires connected 1 to stat, 1 to aux/emerg heat
W2 2 wires connected, blue to stat, black to aux/emerg heat
Z Brown (going to stat)
K Black (going to stat)

any help you could offer me to ensure I wire up my Honeywell unit correctly would be greatly appreciated, thanks in advance
 
  #2  
Old 11-06-10, 09:33 PM
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I am not able to find anything on the old stat, I think that stat was made JUST for that HP system.

Z and K must be some type of fault code or something that I don't know for this system.

Why are you looking at changing this?
 
  #3  
Old 11-07-10, 07:06 AM
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first, thanks Jay for responding to my problem

The main reason for changing the stat is the old one has a mercury switch in it, and you adjust the temp settings by sliding the small lever on the RH side of the stat and guess at what the setting is

I have a thermometer in the room to help me find 70'F, which is what I try to keep the temp. at through through the winter months

any helpyou can offer would be approeciated
thanks
Graham
 
  #4  
Old 11-07-10, 07:41 AM
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Hi Jay

FYI the stat I have is very similar to the white rodgers stat 1F58-72, the wiring of which you can get on-line, if that's any help
regards
Graham
 
  #5  
Old 11-07-10, 07:51 AM
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Some pics of your heat pump wiring diagram (inside of the panel or in the installers manual) might be of assistance.
That Enertran Geothermal site will not post any manuals.
 
  #6  
Old 11-07-10, 08:00 AM
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Originally Posted by beeza5722 View Post
FYI the stat I have is very similar to the white rodgers stat 1F58-72, the wiring of which you can get on-line, if that's any help
That don't help me since it don't show the Z or K, so we still don't know what that suppose to be. As Houston said, we need more info.
 
 

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